AKS-74U

AVTOMAT KALASHNIKOV introduced 1974. more modern version of the AK-47. russian/communist bloc equivalent to the AR-15/M-16. main idea was to use smaller rounds so more ammo could be carried. that idea was stolen from the US forces use of the .223 remington, or 5.56 x 45 round. the idea behind it was is a .22 cak round moving extremely fast has the same energy as a 30 caliber round moving slower. same size as an AK-47. unlike the ak-47 which shoots 30 caliber 7.62 x 39 rounds, the ak-74 shoots 22 caliber 5.45x39 rds